Feeder clamp for overhead trolley systems



I Feb. 13, 1923. 1,445,178.

I P. G. SCIHWARZ.

FEEDER CLAMP FOR OVERHEAD TROLLEY SYSTEMS;

FILED DEC. 22, F919:

I N I I5] I Slum W ScAwm-z,

Patented F 13, 1923,

warren j inane earner OFFHQE,

\ PAUL G. SCHWARZ, OF INDIANAPOLIS, ENDIANA, ASSIGNOR TO ELECTRIC AND IMANUFAOTURING COMPANY, OF INDIANAPOLIS, INDIANA, A CORPORATION.

FEEDER CLAMP FOR, OVERHEAD TROLLEY SYSTEMS.

To all whom it may concern:

Be it known that 1, PAUL G. Sonwanz, a citizen of the United States, residing at Indianapolis, in the county of Marion and State of Indiana, have invented'certain new and useful Improvements in a Feeder Clamp for Overhead Trolley Systems, of which the following a specification.

This invention relates to a SO-CillltitbfGGClGf clamp adapted to be used in. overhead trolley systems, and the invention consists more especially in the portion of the said clamp which provides for making working engagement with the feeder cable or conductor, allv substantially as shown and described andv particularly pointed out in the claim.

In the'accompanying drawings, Fig. l is wire is concerned, nor, on the other hand,

do 1 limit myself to the particular style or form of clampshown. That is, I may em ploy any one of many forms of feeder clamps'now known, provided that it embodies the essential novelty of the present clamp, and which consists in a suitable clanipiirg nieml er a, of whatever type, provided with a boss, head or projection 2 at its middle and top having; an oval." hole,

socket or oocning horizontally therein and adapted to receive a teed-in conductor or cable, not shown. The said oval hole or socket 3 terminates \vithinthe said headin the present showing, but not necessarily,

oi November, 1919 Application filed December 22,1919. Serial No. 346,639.

and looked at in cross section the said slot or opening stands or has its greaterdepth vertically and is penetrated at its top by,

two set screws 4. The said screws are of such reduced size as'compared with the "said socket or opening that they will fill the width of the opening by clearance on in a wire cable or conductor from slipping between the said screws and the side walls of the opening and insuring a good contact between all of the cable wires and the clamp. The oval hole or. socket also, as compared either side, this preventing any ofthe wires vith a round hole, has the material advan- ,tage of receiving strands from l/O to 4/0,

and in case it is desiredto use a size of cable larger tha n 4/0, which may be regarded as I the transverse size of the hole or opening 3,

the cable can be readily flattened moreor less to enter the openings Solid wire instead of a stranded cablealso may be used or other like devices,

'65 up to l/O, and the clamping by set screws l can be made effective without slugs, sh ms Furthcrn'iore, this clamp canalso be used a as a soldered on connecting medium, owing to its cast construction, and with the set screwsin'plan',thethread will prevent the solder from running out.

lNhat I claim is: 1 1 .A feeder clamp for trolley wires having, an elongated round boss offset transversely at its top, said boss being provided with an oval opening horizontally at one end and closed at its opposite end, and a pair of setscrews'entering said opening from the top adapted to secure a cable-therein, 'saidcpeumg having its major oval dimensions extending vertically in line with the axes of said set screws; I i i Signed-at Indianapolis, in, the county of lilarion and State otflndiana, this 18th day t PAUL .G. SCHWARZ. 

